| Type: | NIT |
| Year: | 1989 |
| Teams: | 32 |
| Finalfourarena: | Madison Square Garden |
| Finalfourcity: | New York City |
| Champions: | St. John's Red Storm |
| Titlecount: | 5th |
| Gamecount: | 3rd |
| Semifinalcount: | 1st |
| Semifinal2: | Michigan State Spartans |
| Semifinalcount2: | 1st |
| Coach: | Lou Carnesecca |
| Coachcount: | 1st |
| Mop: | Jayson Williams |
| Mopteam: | St. John's |
The 1989 National Invitation Tournament was the 1989 edition of the annual NCAA college basketball competition.
Below is a list of the 32 teams selected for the tournament.[1]
Below are the four first round brackets, along with the four-team championship bracket.